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Update On The NEXRAD Agency Plans For Near Real-Time WSR-88D Base Data Collection And Distribution

Update On The NEXRAD Agency Plans For Near Real-Time WSR-88D Base Data Collection And Distribution Tim Crum, Ph.D. Radar Operations Center (ROC) NWS Focal Point For WSR-88D Operational Issues NEXRAD Focal Point For Archive And Real-Time Data Distribution Issues 26 September 2002

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Update On The NEXRAD Agency Plans For Near Real-Time WSR-88D Base Data Collection And Distribution

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  1. Update On The NEXRAD Agency Plans For Near Real-Time WSR-88D Base Data Collection And Distribution Tim Crum, Ph.D. Radar Operations Center (ROC) NWS Focal Point For WSR-88D Operational Issues NEXRAD Focal Point For Archive And Real-Time Data Distribution Issues 26 September 2002 OU Stakeholder Workshop On Real-Time WSR-88D Level II Data Held At University of Oklahoma, Norman, OK

  2. Objectives • State NEXRAD Agency Requirements For WSR-88D Level II Archive Data And Near Real-Time Base Data Access • State NWS Plans For Achieving These Requirements • State NEXRAD Program Management Committee (NPMC) Guidelines For Connections To WSR-88D Base Data Streams In Near Real Time • Interim • Final • Answer Questions/Hear Suggestions

  3. NEXRAD Agency Requirements For WSR-88D Level II Archive Data And Near Real-Time Base Data Access • No DOT Or DOD Archive Data Requirements • NWS Has Funded All Level II Data Collection And Archive Costs, Beyond DOD Recorder Acquisition • No DOT Real-Time Base Data Requirements • No Base Data Distribution System (BDDS) At DOT WSR-88Ds • No DOD Real-Time Base Data Requirements Except At 8 Of 26 DOD WSR-88Ds • No BDDS At Remaining DOD WSR-88Ds • NWS Has Archive Data Requirements To Meet R&D, Training, Testing And Other Agency Needs

  4. NEXRAD Agency WSR-88D Data Requirements(Continued) • NWS Near Real-Time Base Data Requirements To Meet NCEP Operational Requirements • BDDS On All NWS WSR-88D RPGs • Each BDDS Has 4 User Ports • Data Timeliness And Reliability Same As For RPCCDS (<60 Sec And >95%) • Future NWS Requirements For Archive Or Near Real-Time Access To New WSR-88D Data/Products To Be Determined – Not Necessarily All/Any Of The Following Will Be Distributed In Near Real Time Nor Archived

  5. Possible WSR-88D Future Data Flows

  6. NWS Plans For Achieving These Requirements • Archive Data • Level II Recorders, Circa 1994, Become Unsupportable In 2003 • NWS Planned For Recorder Replacement With Budget Request • Proof-Of-Concept CRAFT Project Demonstrated Near Real-Time Data Ingestion At NCDC Works • On-Site Tape Recording Suspended At 55 Sites • Near Real-Time Data Access For NEXRAD Agency And External Users Demonstrated In CRAFT

  7. NWS Plans For Achieving These Requirements(Continued) • ROC Explored 9 Options Of Collecting And Transmitting Level II Data Electronically • Lowest Cost Options • A Combination Of Use Of AWIPS WAN And Private Telco Frame Relay To Send Data To NWSTG • A Combination Of Use Of Internet2 And Private Telco Frame Relay To Send Data To NWSTG • NWSTG Routes Data To NCDC, NCEP, External Users • Data Compression on RPG or BDDS (BZIP2) • NWS Control Over Operationally Required Data Streams • NWS Expects To • Determine Final Communications Architecture By End Of 2002 • Begin Turning On Data Flows By Selected Approach NET October 2003

  8. NPMC Guidelines For Connections To WSR-88D Base Data Streams In Real Time • Intended To Minimize Impact On Forecast Office Staff • Interim • NWS Considers Today’s Situation As An “Interim” Phase • External Groups Can Request Connections To Existing BDDS • NEXRAD Agency Requirements To Be Met First • No Compression Equipment Installed, Except For NEXRAD Agency Users • Final • NWS Considers The “Final” Phase As When The Last Of The Required WSR-88D Systems Are Sending Data To The NWSTG • External Users Receive Data Via Broadcast From NWSTG • Only NEXRAD Agencies/Federal Agencies Can Connect To BDDS • Guidelines And Other Base Data Information Can Be Found On ROC Home Page: http://www.osf.noaa.gov/BDCI/

  9. Answer Questions And Listen To Comments And Suggestions

  10. Graphic Description AWIPS WAN Option

  11. Graphic Description Internet 2 Option

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